pdf file doesn't open when pressing on collection view cell when i am using pager library (swift)

pdf file doesn't open when pressing on collection view cell when i am using pager library (swift)

i used this [url removed, login to view] to have tabs on top, you will find a screenshot of what i have right now. what i wanna do is when you press on the cell it should open a pdf file but when i press on the cell nothing happens right now.

PS ( if i am not using that library and i am displaying it normally when i press on the cell the pdf file will work). this is the code i am using to open the pdf file if you press on the cell

Adjudicado a:

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***AppleMás

Hello :)
I've noticed that you're performing the segue with identifier ="showImage",
but in the preparation function, you're checking if the identifier ="showBook"
I think this is the issue.
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